Gas or oil heating-stove



(No Model.)

. C. W. JENKS.

GAS 0R OIL HEATING sToVB.

lllllilllllfnlfllalilmlil l mlllll Patented May '20, 1890.

UNITED STATES PATENT OFFICE.

CHARLES W. JENKS, OF CHICAGO, ILLINOIS.

GAS OR OIL HEATING-STO-VE.l

SPECIFICATION forming part of Letters Patent No. 428,104, dated May 20, 1890.

Application iiled October 28, 1889E Serial No. 328,430. (No model.)

To a/ZZ whom it may concern:

Be it known that I, CHARLES XV. JENKs, of Chicago, in the State of Illinois, haveinvented certain new and useful Improvements in Gas or OilHeating-Stoves, of which the following is a specification.

My invention relates to gas or oil stoves for warming apartments; and the object of my improvements is to provide means for retarding the products of combustion in acontinuously-ascending course in a comb ustion-chamber in conjunction with an air-heating flue surrounding the combustion-chamber,where by a current of air created by the heat of combustion is drawn rapidly through such heating-flue, heated therein, and discharged at the top of the stove. I also provide an exterior air-llue surrounding the air-heating flue, and obstructed at the top for preventing radiation and increasing the draft in the air-heating ilue. The warming is thus produced chiefly by an increased circulation of warm air, instead of by radiation, as heretofore done with heating-stoves. I have attained this object in the stove constructed as illustrated in the accompanying drawings, in which- Figurel is a side elevation of such stove. Fig. 2 is a central vertical section showing` the interior construction and arrangement. Fig. 3 is a horizontal section on the line 3 3 of Fig. 2. FigliE is a horizontal section ofthe combustion-chamber enlarged on the line 4 4 of Fig. 2.

The base of the stove is preferably made of four concentric rings ce, connected together by radial connections a', all the space between the rings and connections being open. The burners a2 are supported on the inner ring. On the next ring is a sheet-iron inner casing b, preferably cylindrical in form, the lower edge being tted in a rabbet in said ring, as shown in Fig. 2. This casing constitutes the combustion-chainber.

From seven to ten inches from the burners there are attached three or more brackets c, and upon these is rested a series of plates c', which plates are connected together by boltrods c2, there being short sections of tubing c3 interposed to keep the plates apart. .Every alternate plate is continuous and of smaller diameter than said casing, so as 'to leave a narrow way d all around between the casing and the periphery of the plate, and the other plates are of vthe same diameter as the casing, so as to fit tightly therein, and are provided with openings d in the center. The products of combustion are retarded by these plates and take a zigzag upward course around and through them, as indicated by the arrows within said casing, being deflected against the casing as they pass the periphery of the continuous plates at d. The top of said inner casing is covered by a cap e, having a flange c', which fits tightly over the same, and has a flanged opening e2,with which the smoke-pipe e3 is connected for carrying off the smokeand fumes of combustion. On the next ring is a similar casing b', which surrounds said inner casing b, and the space inclosed between said two casings forms the air-heating flue, which is open at the top and bottom, and on the outer ring is another similar casing b2, which is open at the bottom, but closed at the top by a plate f, with a large opening in the center, having a downwardly-projecting flange f', which extends down to or slightly below the llevel of the cap c. The space inclosed between said casings b and b2 constitutes the exterior air-flue.

The cap c is provided with an extension beyond the flange e', which reaches nearly to the lower end of the flange f', leaving only a narrow passage-way all round at f2 between said extension and said last-named flange. To the outer edge of said extension is attached a flange e4, and there is a row of perforations e5 in said extension between the flanges e and c4. Said flange e4 divides the upper portion of the airheating flue, so that the air in said flue nearest to the inner casing b, and consequently the hottest, will pass within said flange, and be thereby forced to pass through the openings e5,which afford a more restricted passage-way than that at f2. This portion of the air is thereby retarded and further heated on its way between said inner casing and the flange c4. The air in the exterior flueintercepts the radiation from the exterior of the air-heating flue, and as it is warmed thereby it will rise and pass over the top of the casing b', and will thence be drawn down through the contracted passage-way at fbetween the upper part of said casing and the flange f and thence down and out through the passagelOO Way at f2. The flange f', it will be seen, forms a chamber or enlarged flue directly over the colnbustion-chamber. Said enlarged flue is open at the top, and all of the heated eurrents of air are emptied into the same at the bottom and discharged therefrom at the top into the room.

The top of the stove is covered with an ornamental piece g, provided with a reticnlated top plate g for allowing the currents of hot airto pass out from said enlarged fine.

Doors h are provided in the casings l), ZJ', and b2 for lighting the fire, the inner ones being made to slide up, as the space is hardly suiiicient for a hinged door.

The pipe 7L for supplying the fuel is shown in Figs. 2 and 3.

Among the advantages which the stove thus constructed possesses over others of the class to which it relates are the more direct draft for the smoke and fumes ot combustion, the saving of heat in greater proportion, it being to a much greater extentthan heretofore prevented from passing olf through the smokeflue, and the preventing of radiation from the sides to such an extent that the stove can be placed in closer quarters or near an article of furniture Without liability to injure the same.

What is claimed is- 1. The stove constructed substantially as shown and described, having the combustionchamber in the center provided With defiecting-plates constructed as shown, and arranged over the burners and under the smoke-flue,

the air-heating ilue surrounding the combustion-chamber, an exterior air-liuc surrounding the air-heating flue, and an enlarged chamber or flue placed directly over the combustion-chamber and communicating with the air-heating flue and exterior air-flue by passages e5, f2, and f8, as specified.

2. rlhe stove constructed as shown and de scribed, having the central combustion-chamber provided with deiiecting-plates over the burners, the air-heating flue sul'roundingthe combustion-ch amber, the cap e, having fianges e, e2, and e4, and perforations e5, in combination with the casing W, provided with the top plate f, having iange f', arranged, as shown, relatively to the cap e, as specified.

In a gas or oil heating-stove, and in combination, a central combustion-chamber having the burners near the bottom and the smoke-tlue connected at the top, def'lectingplates c, arranged over the burners and below the smoke-flue, a .flange e, connected to an extension of the top plate of the combustion-chamber provided with a row of perforatons e5, the casing b', surrounding the combustion-chamber and extending above it, the casing b2, surrounding casing D and extending above it, and the plate f, provided with the ilange f', said plate and flange heilig arranged, as shown, relatively to easing b'.

CHARLES YV. JENKS.

W itu esscs:

JNo. 1l. WHIPPLE, WILLIAM O. ROBINSON. 

